Xi'an Uni def ()物质B的摩尔分数xg(mole B fraction) def (2)质量摩尔浓度bg(molality) m def (3)物质的摩尔浓度c.(molarity) CB I (4)质量分数ws(mass fraction) Wg ∑m,Xi’an University of Science & Technology (1)物质B的摩尔分数xB ( mole fraction) i B B def n n x (2)质量摩尔浓度bB(molality) A B B def n b m (3)物质的摩尔浓度cB(molarity) B def nB c V (4)质量分数wB(mass fraction) B B i m w m =